He challenged people to go on microadventures and send him four-minute videos of their trips.

他向人们发起微探险挑战，并邀请他们将自己的探险制作成四分钟的视频发给他。

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He challenged me.

他给我挑战。

youdao

He challenged me at times I needed to be challenged.

而且是在我需要挑战的时候给我挑战。

youdao

All who organized and fomented [that unrest and played the game of our enemies must be challenged and confronted,he charged.

VOA: standard.2009.08.28

And it's that picture of the universe, Kaufman wants to argue, that is challenged by the monotheistic revolution. Again he sees this as a revolution of ancient Israel.

考夫曼提出，正是这个宇宙的大致框架，受到了来自一神论革命的挑战，在考夫曼看来,这是古以色列的一次革命。

耶鲁公开课 - 旧约导论课程节选

Well recall from week zero when we took a very real world phonebook and then just last week we had our volunteer come up with the array of pieces of paper on the board and when I challenged myself and when I challenged our volunteer to find me the number 50 both he and I were able 50 to leverage one assumption.

大家回忆一下,当我们拿着一个现实世界的电话簿,就在上周我们的志愿者,在黑板上提出了纸片的阵列,我挑战自己，也挑战志愿者,要找出同一个,数字。

哈佛公开课 - 计算机科学课程节选

He challenged each recipient to start a company instead of sitting in a lecture hall.

WSJ: Merit Badges for the Job Market

He challenged the veterans to come up with an alternative way to raise revenues.

CNN: Obama dropping vets insurance proposal

He challenged Gordon Brown over whether he still believed he had ended boom and bust.

BBC: The full story: PM's questions